Picrophilus

Picrophilus
Scientific classification
Domain: Archaea
Kingdom: Methanobacteriati
Phylum: Thermoplasmatota
Class: Thermoplasmata
Order: Thermoplasmatales
Family: Picrophilaceae
Genus:
Schleper et al. 1996[1]
Type species
Picrophilus oshimae
Schleper et al. 1996
Species[1]

Picrophilus is a genus of archaeans in the family Picrophilaceae.[2]

Picrophilus is an extremely acidophilic genus within Euryarchaeota. These microbes are the most acidophilic organisms currently known,[3] with the ability to grow at a pH of less than 0.5.[4] They were first isolated from samples taken from acidic hot springs and dry hot soil in Hokkaido (Japan). They are obligate acidophiles and are unable to maintain their membrane integrity at pH values above 4. While phylogenetically related to other organisms within Thermoplasmata, unlike Thermoplasma and Ferroplasma, Picrophilus contains an S-layer cell wall.

References

  1. ^ a b "Picrophilus Schleper et al., 1996". Interim Register of Marine and Nonmarine Genera. Archived from the original on 27 January 2025. Retrieved 27 January 2025.
  2. ^ See the NCBI webpage on Picrophilus. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. Retrieved 2007-03-19.
  3. ^ C.Michael Hogan. 2010. Extremophile. eds. E.Monosson and C.Cleveland. Encyclopedia of Earth. National Council for Science and the Environment, Washington DC.
  4. ^ Life in the Universe: Expectations and Constraints

Further reading


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